English: Arkansas Stone.
Name: from the Latin word novacula: a sharp knife, dagger, razor.
Clades:
Silicates.
Region: Arkansas, Oklahoma, Texas; Japan, Middle East.
Use: in sharpening stones.
Color: white to grey or black in color
Specific gravity: 2.2 to 2.5.
MineralogyNovaculite is a microcrystalline to cryptocrystalline rock type that consists of silica in the form of chert or flint. It forms light grey flatirons.